<html>
  <head>
    <title>Hello</title>
  </head>
  <body style="height: 500px; width: 500px">
    <p id="output">Hello</p>
    <script src="save_data.js"></script>
    
    <button id='add_button'>Add tab</button>
    <button id='disp_button'>See list</button>

  </body>
</html>
